PAPR and security in OFDM-PON via optimum block dividing with dynamic key and 2D-LASM

Wu, Ting-Wei; Zhang, Chongfu; Wei, Hanhan; Qiu, Kun

doi:10.1364/oe.27.027946

Cited by 46 publications

(21 citation statements)

References 38 publications

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“…For example, a proposed chaotic constellation transformation technique in orthogonal frequency-division multiple access-based passive optical networks (OFDM-PON) is examined theoretically and experimentally in [18], where it has shown physical-layer security enhancement and reliable 18.86 Gb/s encrypted signal transmission over 25 Km single mode optical fiber. In [19], an optimum block dividing scheme combined with two-dimensional adjusted logistic sine map and dynamic key assignment technique is employed for further security improvement in OFDM-PON. Security enhancement for OFDM-PON using three-dimensional Brownian motion and chaos in cell [20] and also using chaos encryption and DNA encoding [21] are demonstrated.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Cryptosystem Based on Pseudo Chaos of Novel Fractional Order Map and Elliptic Curves

et al. 2020

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Securing transmission of information between legitimate transmitter and receiver sides is a great challenge for mathematicians, computer scientists and engineers in recent years. This paper aims at achieving three goals. The first of them is to introduce a novel fractional order two dimensional (2D) map having very complex chaotic behavior and distinct large positive values of Lyapunov exponents over wide range of parameters, compared with other 2D maps in literature. Secondly, a new reliable secure encryption scheme combining the associated chaotic pseudo-orbits of the proposed map with the advantages of elliptic curves in public key cryptography is suggested, for first time, and applied to colored images. The hybrid scheme is capable to confirm reliable secret keys exchange in addition to highly obscure and hide transmitted information messages. Finally, a thorough mathematical analysis of security performance and evaluation of encryption scheme immunity against all possible attacks are carried out and proved its efficiency and robustness. INDEX TERMS Chaos-based cryptography, chaotic maps, discrete fractional calculus, elliptic curves, pseudo-orbits.

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Section: Introductionmentioning

confidence: 99%

Hybrid Cryptosystem Based on Pseudo Chaos of Novel Fractional Order Map and Elliptic Curves

et al. 2020

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“…In addition to improving the physical-layer security, precoding is an effective method for reducing the peak-to-average power ratio [19], [20]. Involving symbol and subcarrier scrambling, many encryption schemes are studied, such as Brownian motion for scrambling the QAM symbols [21], partial transmission sequence technique [22], block dividing with chaos and dynamic key [23], chaotic pseudo-random RF subcarriers [24], and hybrid chaotic confusion and diffusion [25]. There are many other encryption schemes in combination with chaos, e.g., fixed-point digital chaos algorithm [26], time-frequency domain encryption with selected mapping scheme [27], piecewise chaotic permutation method [28], and polar-coded chaotic encryption method [29].…”

Section: Introductionmentioning

confidence: 99%

A Novel Hybrid Secure Method Based on DNA Encoding Encryption and Spiral Scrambling in Chaotic OFDM-PON

et al. 2020

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This paper proposes a novel hybrid secure method based on improved deoxyribonucleic acid (DNA) encoding encryption and spiral scrambling in chaotic OFDM-PON for enhancing the physical-layer security. In the improved DNA encoding encryption, the oddeven cross-bit DNA encoding, base scrambling and base-level substitution are determined by chaotic sequences. For each binary and base, the selected encoding rules and base scrambling methods are dynamically changing, which enhances the robustness against malicious attacks by attackers. In the spiral scrambling process, the QAM symbol matrix is divided into several blocks, and these blocks are scrambled. In the scrambling of the plural matrix, the position where the spiral starts and the orientation and direction of the traversal are also controlled by the chaotic sequences. By employing DNA encoding encryption and spiral scrambling, a key space of ∼ 10 135 can be achieved in the multi-fold encryption of the proposed scheme, which can improve the physical-layer security. The encrypted 16-QAM OFDM data are successfully transmitted over a 60-km SSMF in OFDM-PON. The simulation results demonstrate that it has better BER performance at the BER of 10 −3 than other schemes. The proposed encryption method can effectively protect data from attacks by eavesdroppers or illegal users.

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“…Without encryption key, the data cannot be recovered from the ciphertext by illegal ONU [3], [4]. An approach for peak-to-average-power ratio reduction and security improvement in an orthogonal frequency division multiplexing (OFDM) passive optical network is proposed by employing optimum block dividing with 2-dimensional logistic adjusted sine map (2D-LASM) and dynamic key assignment technique [5]. And a physical layer enhanced secure future generation PON based on chaotic signal scrambling and the secure hash algorithm (SHA) is proposed [6].…”

Section: Introductionmentioning

confidence: 99%

High-Security Multi-Slot Chaos Encryption With Dynamic Probability for 16-CAP PON

et al. 2020

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In this paper, a high-security chaos encryption with dynamic probability for 16-carrier-less amplitude/phase (CAP) PON is proposed by using two-layer chaos map with feedforward neural network-based XOR operator (FNNXOR). The inner chaotic map is divided into several time slots, and the key of each time slot is different and dynamically allocated by outer layer of 2-dimensional logistic adjusted sine (2D-LASM) map. And the 16-CAP signal is encrypted by (CCDM) and XOR operator to realize dynamic probability and flexible rate. The ONU checks out and compares the hash value sent by OLT, so as to achieve slot synchronization. A 4 Gb/s multi-slot chaos encrypted 16-CAP signal with dynamic probability is transmitted through a 25-km standard single mode fiber (SSMF). The proposed scheme has a high anti-hacking capability and good performance under key leakage. Compared with conventional chaos encrypted 16-CAP signals, the probabilistic shaped signals exhibit better tolerance towards low received optical power. These experimental results verify that the proposed approach is a promising candidate for encryption in access network systems.

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PAPR and security in OFDM-PON via optimum block dividing with dynamic key and 2D-LASM

Cited by 46 publications

References 38 publications

Hybrid Cryptosystem Based on Pseudo Chaos of Novel Fractional Order Map and Elliptic Curves

Hybrid Cryptosystem Based on Pseudo Chaos of Novel Fractional Order Map and Elliptic Curves

A Novel Hybrid Secure Method Based on DNA Encoding Encryption and Spiral Scrambling in Chaotic OFDM-PON

High-Security Multi-Slot Chaos Encryption With Dynamic Probability for 16-CAP PON

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